(adjective) having been such at some previous time
(adjective) going before another in time or order
(noun) the first of two or the first mentioned of two
Definitions for Vietnam
(noun) a communist state in Indochina on the South China Sea; achieved independence from France in 1945
(noun) a prolonged war (1954-1975) between the communist armies of North Vietnam who were supported by the Chinese and the armies of South Vietnam who were supported by the United States